Standards Compliant Learning Management System
ATutor is an Open Source Web-based Learning Management System (LMS), designed with accessibility and adaptability in mind. Author interoperable e-learning content, provides social networking, and adheres to standards. Put your courses online.
Simple, web-based address & phone book
Simple, web-based address & phone book, contact manager, organizer. Groups, addresses, e-Mails, phone numbers & birthdays. vCards, LDIF, Excel, iPhone, Gmail & Google-Maps supported. PHP / MySQL based. http://php-addressbook.sourceforge.net/demo
Pligg CMS is a content management platform that powers tens of thousands of websites. It specializes in creating social publishing networks, where users submit and promote content similar to sites like Digg, Reddit, and Mixx.
Your social Netvibes !
POSH is a social PHP widget portal, web-based content and RSS feed reader, customizable and compliant with Netvibes. Usable in an educational, associative or enterprise intranet context.